Footwear sole



FIG. 1 is a rear perspective view of a footwear sole showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a front elevation view thereof; and,

FIG. 8 is a rear elevation view thereof.

The broken lines showing a tall thin triangle in FIGS. 1, 2, & 5 define the internal boundary of the design. The broken lines and the area within, form no part of the claim. 

The ornamental design for a footwear sole, as shown and described. 